Abstract: In the method disclosed for filtering a contaminated gas laden with liquid vesicles (or aerosols) through a filter medium arranged around a center hollow through which the aerosol enters, the filter medium is heated to a temperature above the aerosol's dew point by a radiant heat source arranged in said center hollow. The inventive filter enables the said method to be practiced.

Abstract: A system for filtering the harmful particulates and liquids from a laser plume formed during surgical procedures. The laser plume may be passed through a suction canister to remove a liquid component from the laser plume. Thereafter, the laser plume is passed through a filter containing granular activated charcoal and a pleated filter to remove substantially all toxic elements and particulate matter in the laser plume. The system is self-contained and is configured such that the air from the laser plume is not cross-contaminated with either the ambient air in the room or the cooling air of the vacuum motor. The system also contains a pressure differential measuring device for indicating to the medical personnel when the filter of the present invention needs to be changed. Because of the unique configuration of the present invention, it is capable of running at increased suction levels while running at reduced noise levels as compared with conventional systems of this nature.

Abstract: A filtering system includes a filter drum assembly. The system includes a filter tank with a conveyor in the bottom which removes contaminants from liquid in the tank. The filter tank also has supports therein by means of which the filter drum assembly is removably supported in the tank and can be removed as a single assembly. The filter drum assembly includes a filtering drum located in the tank and supported by a suction pipe connected by a separable fitting to a suction pump. A drive shaft is vertically positioned above the drum and is rotatably supported by an end wall of the drum. The shaft drives a wiper arm having a wiper blade in contact with the filtering drum wall and the blade is periodically moved around the drum wall to clean filter cake therefrom. The wiper arm is driven by a one-way clutch, an arm, and a fluid-operated ram which is also supported by the suction pipe.

Abstract: A foam-breaking device comprising a heating element enclosed in a synthetic resin membrane.

Abstract: A device for purifying contaminated gas, such as air drawn from an automobile painting tunnel and containing a mist of paint particles, includes an upper water feed orifice 1 connected to a lower flow channel 4 by an intermediate channel 3 which diverges progressively from top to bottom. A horizontal, transverse wall 8 is positioned beneath the feed orifice at a downstream section of the intermediate channel. Water falling against the wall splashes out in a curtain of droplets through which the air must pass, with the paint particles thus being entrained in the droplets and removed from the air flow. The low divergence angles of the intermediate channel ensures the continuous wetting of its walls to prevent clogging.

Abstract: A filter for the separating of solids particles from hot, gaseous or liquid media, especially separating dust particles from hot flue gases in the temperature range of within 250.degree. C. to 800.degree. C., which consists of a permeable, inherently stable carrier material or substrate which is provided with larger pores; in essence, a support member in which the carrier material is constructed so as to be heat-resistant, and which especially contains constituents of non-corroding materials, such as glass, ceramic, metals or compounds thereof; and in which filter the carrier material can be produced through the intimate, partial bonding of the heat-resistant particles thereof, and wherein the carrier material also possesses a strucutre or, essentially, a spatial or three-dimensional configuration, which is correlated with the type of utilization and the specified capacity.

Abstract: A gas ionization system for use in an enclosure having an inlet and an outlet. The system includes at least a pair of spaced electrodes, each electrode being formed of a wire screen, and the wire screens being parallel to each other. A stream of gas is passed through the enclosure and between and parallel to the wire screen electrodes. An electrical power source applies positive and negative voltages to the electrodes to generate an electric field between. The wire screen electrodes have discharge points for field emission of electrons. Free electrons are movable between the electrodes in a direction substantially perpendicular to the direction of travel of the gas stream. The intensity of the electric field is sufficiently large to cause substantially all free electrons in the electric field other than those electrons which ionize gas molecules to be retained in the space between the electrodes.

Abstract: A method of dehumidifying gas in which gas is brought into direct contact with an absorption liquid in one or more stages, and in which the absorption liquid in at least one stage comprises a salt solution which includes an amount of salt crystals so that the concentration of the salt solution will not be substantially reduced in the absorption stage.

Abstract: An apparatus for removing particles from exhaust gas includes an electrode support block formed of a support constituted of electrical insulation material and having a recessed portion that opens to the downstream side of the exhaust gas flow, the electrode support block being arranged in an intake tube through which the flow of exhaust gas that contains the particles is introduced with an intervening space for the flow of exhaust gas between the peripheral surface of the support block and the intake tube. A hollow needle electrode with a spray nozzle at its tip is provided in the base of the recessed portion and a cylindrical electrode is provided in opposition to the hollow electrode around the inner edge of the recessed portion. Provided downstream of the cylindrical electrode is an atomization chamber into which flow the exhaust gas and charged droplets emitted from the spray nozzle. A cylindrical collector electrode is provided around the inside of the atomization chamber.

Abstract: A blow-off gun is provided having a static eliminator having a gas inlet end and a gas outlet end. A removable hollow fiber filter is retained in and extends into the gas inlet end of the static eliminator. The hollow fiber filter communicates with a supply of gas through a handle portion of the gun. Located within the handle portion is a valve and trigger assembly, the valve being provided with a pin hole to supply a constant positive flow of gas, thereby to prevent backflow of ambient air into the gun.

Abstract: An electrostatic air filtration system of the charged media type wherein contact between the filter media and the electrostatic charging media of the filter is minimized or eliminated to increase the efficiency of the filter. The fibrous filter media is either corrugated to minimize its contact with the charging media or separated from the charging media by nonconductive spacers. This dramatically increases the efficiency of the filter by reducing the voltage drop on the charged media caused by conduction across a filter medium in close contact with both a charged and a grounded medium.

Abstract: Metal deposition apparatus having at least one roller arranged for consolidation of the deposited metal by rolling thereof in the course of the deposition process, which roller comprises a plurality of sub-rollers of independent movement.

Abstract: An apparatus and method for stripping and depressurizing fine particulates mixed with gas discharged from a vessel operated at elevated temperature and pressure conditions to a low pressure vessel using a purge gas injected into a conduit designed for significant frictional pressure loss per unit length of conduit while maintaining a substantially constant velocity of the mixture conveyed.

Abstract: An arrangement for generating an electric corona discharge in air having a corona electrode, a target electrode which is spaced from the corona electrode, and a d.c. voltage source, the respective terminals of which are connected to the corona electrode and the target electrode. The voltage of the voltage source and the construction of the corona electrode are such as to generate a corona discharge at the corona electrode. A conduit is provided for continuously removing the air present in the immediate vicinity of the corona electrode and dealing with the air thus removed in a manner to render innocuous physiologically harmful substances or irritants present in the air and generated by the corona discharge, such as primarily ozone and nitrogen oxides.

Abstract: An air filter and particle removal system for eliminating impurities from air. The system is constructed with an upper electrode plate facing a lower electrode plate. A flypaper-like material is placed close to the lower plate with the sticky side of the material facing the upper plate. The plates have different voltage polarities so that when air is passed through the duct, charged particles within the air will move toward the lower plate and are caught by the flypaper-like material. Further, the upper plate is shaped to create turbulences in the air to cause other impurities to flow over and be caught by the flypaper-like material.

Abstract: A vortex tube gas cleaning device 10 is used to clean a particle containing gas flow stream of particles. The device 10 has an outer tube 12 having an inlet 14 at an upstream end, and, in series downstream of the inlet 14, a vortex generator 16 in a vortex region 18, and a separation region 19. An inner extraction tube 40 is located at the downstream end of the tube 12 and extends concentrically within the outer tube 12, upstream, canti-lever fashion. A peripheral outlet region 22 is defined annularly around the inner tube 40 downstream of the separation region 19 and leads to an outlet port 36. A central outlet region 24 is defined within the inner tube 40 downstream of the separation region 19 and leads to an outlet 48. A ring 50 which is integral with the inner tube 40 extends into the outer peripheral region 22. It has an oblique leading wall 52 leading to a crown defining an annular orifice 54.

Abstract: The present invention relates to a particle separator device which comprises a centrifugal separator with a loading duct, a duct for discharging the agglomerated particles and a duct for the discharge of the gaseous flow. The device comprises Venturi-meter throttling means, a pressure element which has a pressure containment chamber which is preferably formed with a diaphragm which supports a movable part. A pneumatic connection is provided between the chamber and the throttling means, and a mechanical coupling is provided between the movable part and valve means for adjusting the width of the passage of the gaseous flow. The device is capable of self-adjusting according to the amount of granular material which is kept in suspension. The invention furthermore relates to an apparatus for the pneumatic conveyance of granular materials which uses the device described above.

Abstract: A coating apparatus for forming a curtain film of uniform thickness on a suitable substrate, particularly for production of recording/reproducing media such as photosensitive and magnetic media. Jets of an auxiliary liquid are provided in the vicinity of a lip portion of a liquid pouring device which pours the coating film on the substrate. The jets expel an auxiliary liquid which does not affect the characteristics of the coating film, but which does prevent thinning of the curtain film in the vicinity of edge guides of the apparatus. Depending on the height of the curtain film, more than one set of jets may be provided along the length of the curtain film.

Abstract: Device for the separation of liquid droplets from a gas stream comprising a plurality of wave plates (1, 2 and 3) arranged close to one another in such a way that a passage (5, 12) is defined between two adjacent plates, which passage alternately comprises a narrowing part (21) and a widening part (22) that is joined to the narrowing part (22), wherein a bend in the passage lies between the largest width of the widening part (22) and the smallest width of a narrowing part (21) that is joined to the widening part (22).

Abstract: A method of removing hydrosulfide from a crude gas produced by partial oxidation of carbon-containing material comprises the steps of treating a gas at a temperature between 10.degree. and 60.degree. C. with a suitable absorption solution, regenerating the absorption solution loaded durhg the treating, and cooling the crude gas which has been precleaned and pre-cooled to a temperature of 110.degree.-150.degree. C. before entering the absorption column, in a stepped manner in indirect heat exchange, the cooling including supplying the gas first through a reboiler of a desorption column and then through a heat exchanger which serves for preheating of the loaded absorption solution.